Cloth expander



Patented Sept. 7, 1926.

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4 Application .filed `Felnuary wardly and upwardly, such as from one.

roll or drum downwardly into a dye fjig and from such upwardly'to Vanotherroll or drum', Vinorder that the expander may be readily moved into contact with Aeither oft said runs ot clothor intermediate same.

With the foregoing and other objects 1in view, which will'be apparent pas the descripl tion proceeds, the invention resides inthe construction and arrangement of parts as hereinafter described and claimed, it `being understood that changescan bemade within the scope of what is claimed, vwithout departing from the spirit of the invention.

The invention is illustrated in the accompanying drawing, wherein- Figure 1 is a side elevation, somewhat diagrammatical, illustrating the invention as used in connection with a dyerjig, portions being shown in section on the line 1-1 of Fig. 2.

F ig. 2 Fig. 1.

As illustrated, the cloth expander is used in connection with a dye jig, but the invention is not limited to such use, inasmuch as the expander mounting may be used for other purposes for which it is appropriate, such as for mounting an expander between oppositely moving runs of cloth to contact is a section on the line 2-2 of 'i with either run of cloth.

As shown in the drawing, the cloth is unwound from the roll or drum 7 and passes downwardly, as at 8, under the guide rollers 9 and 10, and then moves upwardly, as at 12, to the roll or drum 13, for moving the cloth through a tank 11 lcontaining the dye solution or other liquid with which the cloth is to be impregnated or treated. Ordinarily, it is necessary for an attendant to watch the cloth and manually keep the cloth from creasing and the selvedges doubling,y

which it permitted will permit the creases and selvedges to build up and eventually tear the cloth.

In order to eliminate the services of an 24, i926. serial no. 90,351.

bled sel-vedges 'out of the cloth, ari-expander 111 fis --mounted between ltheopposite runs Vf8 and 1Q whiehmove'in opposite directions, the `ru-nf `moving downwardly as shown-and therun 12 moving upwardly. Theexpander may be of the kind disclosed finfmy Patent No. 11,569,343, granted January/12, `1926, or in my copending application Serial YNo. l(35,837, suitable cloth'expander mayY-beused. .Such expander comprises la lcurved roller which, Ybyits -frictional contact with the cloth, will and or stretch the Acloth transversely.

The expander is supported Iby an oscil-y latory trame or `support comprising arms 1.5 composedfo sections of Apipe fhavingsuitable fixtures or bearings i16 at their upper endsl Ain lwhich the terminals of -the curved `axle or rod of lthe expander AAare secured. The arms 15 have their "lower'endslmounted nforrocking motion. vAs Vshown, saidA arms have Ifrs i1? at their :lower :ie-nds mounted for turning movement on a transverse rod or pipe 18 secured at its terminals to opposite sides of the tank 11. `The arms 15 are connected by'a brace 19, which may be a rod or section of pipe, with its ends connected to the arms 15 by T couplings 20.

Thus, as seen in Fig. 1, the expander support may be readily swung about the transverse axis .of the rod or pipe 18 to the positions A, B and C. When the cloth is moving in the direction of the arrows as shown in Fig. 1, the expander is moved against the upwardly moving run 12, thereby stretching or expanding' the cloth as it tiled '@ct. 28, 1925,.1although anyl leaves the tank and before it is wound on the roll or drum 13. When the cloth moves in the opposite direction, the expander is moved to the position B, against the run 8, which in this case moves upwardly to the roll or drum 7, just reverse to the direction indicated by the arrows. In this way, the expander may be moved into contact with either of the opposite runs of cloth, according to the direction in which the cloth moves, so that a single expander will su'ice for the purpose, using a simple mounting for the expander. The expander may be moved to the position C interme diate the runs of cloth when the use of the expander is not required or wanted,

thereby rendering the expander idle.

When the expander is moved to either ot' the positions A and B, it will be noted that the expander will bear against the cloth by its own weight, thereby maintaining the expander in position against the cloth and also applying theY expander to theV cloth under pressure, 'or the expander may be'rigidly held in either position by any suitable means. Y

' Having thus described theinvention, what tion, a curved cloth expander between said runs, and means for mounting said expander to be moved into Contact with either of said runs with the convex side of the expander facing in the direction of travel ofthe cloth.

JY 3.5 A curved'cloth expander, and an oscillatory support carrying said expander for the movement of the expander between opposite runs of cloth movable in either direction to contact with either run with the convex side of the expander Vfacing inthe directionof travelof the cloth.

4. They combination withnieansfor guidingcloth along opposite runsin either direction, a curved cloth expanderbetween said runs, and an oscillatorysuppport carrying said expander formovement into Contact with either of said runs with the convex side of theexpander facing in the direction of travel of the cloth.

5. The combination with means for guiding cloth downwardly and upwardly along opposite runs in either direction, of a support'J mounted for oscillatory motion and extending upwardly from the axis of oscillation, and a curved cloth expander mounted on said support between said runs to contact with either of them with the convex side ofthe expander facing in the direction of travel of the cloth. .i v

6. The combination with a tank and means for guiding cloth downwardly into and upwardly from said tank in either direction, of a support mounted yfor oscillatory movement inthe tank and extending upwardly therefrom, and` a curved cloth expander mounted-on said supportbetween said runs to Contact with either of ythem with the convex side of the expander facing in the direction of travel of the cloth. i

In testimonywhereof I -hereunto afiix my signature.`

FREDERICK BENEDIGT vonGELI. 

